Not sure this is the right sub for this, if not please point me towards the right one. I got a replica of an old map recently and I would like to know the time period it's from. The year is not listed anywhere on the map, but from the details of the map itself I would guess it's from some time in the 1920's, but I would like to know more specifics if possible. Here are some pictures:

http://i.imgur.com/tcFtWTF.jpg the lower left corner says "Bacon's standard map of the world on Mercator's projection, by G.M Bacon, F.R.G.S."

http://i.imgur.com/KSxkk80.jpg French West Africa, Anglo Egyptian Sudan, Belgian Congo, Italian Somaliland, etc.

http://i.imgur.com/PpEkQlv.jpg Europe in more detail. I know this is post 1923 because Turkey is there.

http://i.imgur.com/yAoMNvy.jpg Middle east.

http://i.imgur.com/LMYTN9e.jpg Asia. There's the Chinese Republic, which controls Mongolia. Taiwan, Korea, and southern Sakhalin are owned by Japan.

http://i.imgur.com/8uAm7yN.jpg SE Asia in more detail. French Indochina, Fed. Malay states, Dutch East Indies, etc

I would love to have some info as to exactly when this map is from, I figured this would be a good sub for this question but if I am wrong please let me know. Sorry for potato pictures, I have a dark room and a bad camera Edit: fixed a typo